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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study, with certain restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1961
Report date:
1961

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
yes
Remarks:
only 7-day observation period
Principles of method if other than guideline:
BASF-Test
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Dibutyl phthalate
EC Number:
201-557-4
EC Name:
Dibutyl phthalate
Cas Number:
84-74-2
Molecular formula:
C16H22O4
IUPAC Name:
dibutyl phthalate
Details on test material:
- Name of test material (as cited in study report): dibutyl phthalate
- Physical state: colorless clear liquid
- Analytical purity: technical purity
No additional data provided

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Gassner
- Age at study initiation: no data
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
No additional data

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
olive oil
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 50%
No additional data provided
Doses:
no data
No. of animals per sex per dose:
no data
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Frequency of observations and weighing: body weight was determined before the start of the study for determination of dose. Animals were observed approximately 1-3 hours after dosing and then daily over a period of 7 days.
- Necropsy of survivors performed: yes; at necropsy, all rats were examined for gross pathological changes. No further details available.
Statistics:
None

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
6 279 mg/kg bw
Based on:
test mat.
Remarks on result:
other: the LD50 was 6279.0 mg/kg bw (calculated from 6.0 ml/kg bw assuming test substance density of 1.0465 g/ml)
Mortality:
no data
Clinical signs:
other: no data
Gross pathology:
no data

Applicant's summary and conclusion